1 files changed, 4 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 7dcf23c..d5437ef 100644
--- a/Makefile
+++ b/Makefile
@@ -56,5 +56,8 @@ venv: $(VENV_DIR)/bin/activate
 
 $(VENV_DIR)/bin/activate:
 	test -d $(VENV_DIR) || virtualenv $(VENV_DIR)
-	source $(VENV_DIR)/bin/activate && pip install -e .[dev]
+	source $(VENV_DIR)/bin/activate && pip install -e .[dev] && pip install six
 	touch $(VENV_DIR)/bin/activate
+
+clean_venv:
+	rm -rf $(VENV_DIR)